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基本概念：过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。基本结构主语+was/were+doing+其他内容注:doing就是现在分词，词形变化与现在进行时相同V-ing变化规则：1）一般加ing.如:play----playing玩watch----watching看2）以不发音的e结尾,去e加ing.如:take----taking拿make----making做come---coming来live----living居住3）重读闭音节，末尾只有一个辅音字母，先双写再加ing。如：run----running跑cut----cutting切swim----swimming游泳sit----sitting坐get----getting获得shop----shopping购物stop-----stopping停止win----winning赢put----putting放forget----forgetting忘记begin----beginning开始常用的时间状语-----判断标志thismorning,thewholemorning,alldayyesterday,atthattimefromninetotenlastevening,when,while,justnow，at7p.m.lastnight|yesterday句型变化肯定句：主语+was/were+doing+其它否定句:主语+was/were+not+doing+其它一般疑问句:Was/Were+主语+doing+其它特殊疑问句:特殊疑问词+was/were+主语+doing+其它•1.Iwassingingsongsyesterdaymorning.•否定句：___________________________•一般疑问句：__________________________•2.Theyweredrawingpictureswhentheteachercamein.•否定句：___________________________•一般疑问句：__________________________•3.Shewaswashingthewindowwhenthetelephonerang.•否定句：___________________________•一般疑问句：__________________________按要求转换下列句型。1.WewerehavingaPEclassatfouryesterdayafternoon.（改为否定句）We____________aPEclassatfouryesterdayafternoon.2.Katewasreviewingherlessonsateightlastnight.（改为一般疑问句，并做肯、否定回答）______Kate_______herlessonsateightlastnight?,she________.________,she_______.weren'thavingWasreviewingYeswasNowasn't其它用法1.过去进行时表示现在主要是为了使语气委婉、客气。如：Iwaswonderingifyoucouldgivemealift.我不知你能否让我搭一下车【注】一般过去时也有类似用法，但比较而言，用过去进行时显得更客气，更不肯定。能否让我搭一下车。2.过去进行时表示感情色彩与现在进行时相似，过去进行时也可表示满意、称赞、惊讶、厌恶等感情色彩，也通常与always,forever,continually等副词连用。如：（1）、Theywerealwaysquarrelling.他们老是吵架。（2）、Myfatherwasalwayssmokingwhenhewasyoung.3.动词be的过去进行时也可表示过去一时的表现或暂时的状态。比较：Hewasfriendly.他很友好。(指过去长期如此)Hewasbeingfriendly.他当时显得很友好。(指当时一时的表现)S1:WhatwereyoudoingwhileLiJiewasgettingreadytogoout?S2:IwassleepingwhileLiJiewasgettingreadytogoout.S1:Whatwereyoudoingwhileshewastavellingontheunderground?S2:I___________whileshewastravellingontheunderground.While用法：表示在过去的某个时间，前后两个动作是同时进行的。如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可用过去进行时When和while用法：描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。Mybrotherfellwhilehewasridinghisbicycle.Itwasrainingwhentheyleftthestation.短短长长过去进行时常与when,while连用，意思是当……之时。while后面一般跟延续性动词，常用进行时；when后面既可跟延续性动词，也可跟瞬间动词，常用过去式。一般过去时与过去进行时的区别1、一般过时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。比较：Shewrotealettertoherfriendlastnight.她昨晚给朋友写了封信。(信写完了)Shewaswritingalettertoherfriendlastnight.她昨晚一直在给朋友写信。(信不一定写完)2、一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。如：Shewavedtome.她朝我挥了挥手。Shewaswavingtome.她一直朝我挥手。3、句中有amomentago之类的短语一般用一般过去时。4、句中有atthistimelastSunday,from8to9yesterday之类的状语一般用过去进行时。过去进行时可以用来代替一般过去时，表示更为偶然而非预定的动作：IwastalkingtoTomtheotherday．那天我跟汤姆聊天来着。典型的例子1)Mary___adresswhenshecutherfinger.A.madeB.ismakingC.wasmakingD.makes答案C.割伤手指是已发生的事情，应用过去时。同时，when表时间的同时性，玛丽在做衣服时提供事情发生的背景，因此用过去进行时。2)Asshe___thenewspaper,Granny___asleep.read；wasfallingB.wasreading；fellC.wasreading；wasfallingD.read；fell答案B.句中的as=when,while，意为当……之时。描述一件事发生的背景时，用过去进行；一个长动作发生的时候，另一个短动作发生。句意为在她看报纸时，奶奶睡着了。句中的fell(fall的过去时)，是系动词，后跟形容词，如：fallsick。•用所给动词的正确形式填空：•Doyouknowwhatthey__________(do)thistimeyesterday?•They_____(have)supperwhenwe_____(go)intotheroom.•It______(rain)from7to9lastnight.•Whenshe______(arrive)I_______(telephone)Harry.•What_____you______(do)yesterdayat7pm?•WhenI______(go)downstairs(楼下),they_______(eat)breakfast.weredoingwerehavingwentwasrainingarrivedwastelephoningweredoingwentwereeating•填入以下单词的正确形式。•1．Itwaswarm,soI_______(take)offmycoat.•2．Jane___________(wait)formewhenI______(arrive).•3．Suewasn’thungry,soshe_________(eat)anything.•4．MybrothercameintothebedroomwhileI_________(dance).•5．_______he________(lie)onthegroundatnineyesterdayevening?tookwaswaitingarrivedatewasdancingWaslying•6．What_____Jim__________(write)whentheteachercamein?•7．MikeandI___________(play)basketballatthattimeyesterdayafternoon.•8．Mybrother______(fall)whilehe_______(ride)hisbicycleandhurthimself.•9．IfirstmetLisathreeyearsago.She______(work)ataradioshopatthetime.•10.WhenIarrivedathisoffice,he______onthephone.(speak)waswritingwereplayingfellwasridingwasspeakingwasworking•根据汉语提示完成句子。•1．他们那时不在打排球。•They______________volleyballatthattime.•2．当你回来时，他在看电视吗？•_______he_______TVwhenyoucameback?•3．昨天中午他在哪里等你？•______________he_______foryouatnoonyesterday?•4．当我离开时，他正在做家庭作业。•He________________hishomeworkwhenIleft.•5．正当他们扫地的时候，老师进来了。•Whilethey______________thefloor,theteachercamein.weren'tplayingWaswatchingWherewaswaitingwasdoingweresweeping(1)I______ashoweratthattime.A.haveB.hadC.amhavingD.washaving(2)Asshe____thenewspaper,Granny___asleep.A.read;wasfallingB.wasreading;fellC.wasreading;wasfallingD.read；fell(3)Mary_______adresswhenshecutherfinger.A.madeB.ismakingC.wasmakingD.makesDBCExerciseI.用所给动词的适当形式填空。1.We___________(play)footballwhenitbegantorainheavily.2.Youshouldtellwhatyou__________(do)ateightyesterday.3.They__________(talk)loudlywhentheteachercamein.4.Lastnightwe__________(do)ourlessons,whenthelightsuddenly_________(go)out.wasplayingweredoingweretalkingweredoingwentII.完成句子。1.昨晚我在看电视，我的父亲在看书。LastnightI__________________TVwhilemydad__________________abook.2.我们正在下棋，突然电话响了。We__